Thanks for fixing that.
I've already planned to pull it and tear it down and replace seals and gaskets. I ordered a genuine Kohler gasket and seal kit, and a tune up kit for it. I just hope it doesn't bite me in the rear when I get inside and find any damage or excessive wear. There is no smoke from the exhaust and it runs nice and smooth, so I don't anticipate anything at this point. The muffler bolts look a little scary.
I better start soaking them with rust penetrant.